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Lab 1
Lab 1

... Group: Cyanobacteria The cyanobacteria are aerobic, photoautotrophic bacteria. They were once called blue-green algae but they are made up of prokaryotic cellas and are not a true algae. They have unicellular, colonial and filamentous forms. They contain the pigment phycocyanin which give them their ...
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sample

... 11. Taxis refers to the ability of many bacteria to move toward favorable conditions (positive taxis) or away from unfavorable conditions (negative taxis). Only motile bacteria are capable of taxis. In an almost all cases, motile bacteria rely on flagella. 12. Almost all bacteria are protected from ...
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... has relatively little protein associated with it. Replication and translation is similar to eukaryotes. Plasmids are small circular DNA molecules found in bacteria. ...
Module 8 – Diversity of Microbial World
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... requirements for growth characters like carbon and nitrogen sources, cell wall constituents, general nutritional type, energy sources, optimum growth temperature, Motility. 3. Ecology:- These are taxonomically valuable because even very closely related microorganisms can differ considerably with res ...
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... more complex. They have a peptidoglycan layer surrounded by the plasma membrane and an outer membrane. - Gram-negative bacteria are typically more resistant to host immune defenses and antibiotics. Note that the two types of bacteria can be stained to determine which is gram-negative (pink) and gram ...
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... Extinction is a principle of evolution and well over 99% of the species that have ever lived have become extinct. It is often said that we lose about 1 species per day; however, this is just a guesstimate. Nevertheless, we seem at present to be living in a period of mass extinction, the 6th of its k ...
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... Microbiology Susceptibility (MS) Domain • The MS domain is designed to store any findings related to the organisms found and submitted in MB. This will usually consist of susceptibility testing results, but can also be other organism-related findings such as extent of growth of an organism. • All c ...
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Bacterial Classification, Structure and Function
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... Molecular subtyping: Sometimes it is necessary to determine whether strains from the same species are the same or different. For example if there is an outbreak of infections that appear due to the same bacterial species, the hospital epidemiologist will want to know if all of the infections are due ...
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Bacterial Classification, Structure and Function

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Bacteria Webquest - Mansfield Legacy
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... Please visit the following websites: http://www.cellsalive.com/pen.htm http://whyfiles.org/2012/bacteria-social-critters/ http://www.microbiologybytes.com/video/endospores.html 24. What is penicillin? How does it work? 25. What is a plasmid? How does this allow for antibiotic resistance? 26. How can ...
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Microorganism



A microorganism (from the Greek: μικρός, mikros, ""small"" and ὀργανισμός, organismós, ""organism"") is a microscopic living organism, which may be single celled or multicellular. The study of microorganisms is called microbiology, a subject that began with the discovery of microorganisms in 1674 by Antonie van Leeuwenhoek, using a microscope of his own design.Microorganisms are very diverse and include all the bacteria and archaea and almost all the protozoa. They also include some fungi, algae, and certain animals, such as rotifers. Many macroscopic animals and plants have microscopic juvenile stages. Some microbiologists also classify viruses (and viroids) as microorganisms, but others consider these as nonliving.Microorganisms live in every part of the biosphere, including soil, hot springs, ""seven miles deep"" in the ocean, ""40 miles high"" in the atmosphere and inside rocks far down within the Earth's crust (see also endolith). Microorganisms, under certain test conditions, have been observed to thrive in the vacuum of outer space. The total amount of soil and subsurface bacterial carbon is estimated as 5 x 1017 g, or the ""weight of the United Kingdom"". The mass of prokaryote microorganisms — which includes bacteria and archaea, but not the nucleated eukaryote microorganisms — may be as much as 0.8 trillion tons of carbon (of the total biosphere mass, estimated at between 1 and 4 trillion tons). On 17 March 2013, researchers reported data that suggested microbial life forms thrive in the Mariana Trench. the deepest spot in the Earth's oceans. Other researchers reported related studies that microorganisms thrive inside rocks up to 580 m (1,900 ft; 0.36 mi) below the sea floor under 2,590 m (8,500 ft; 1.61 mi) of ocean off the coast of the northwestern United States, as well as 2,400 m (7,900 ft; 1.5 mi) beneath the seabed off Japan. On 20 August 2014, scientists confirmed the existence of microorganisms living 800 m (2,600 ft; 0.50 mi) below the ice of Antarctica. According to one researcher,""You can find microbes everywhere — they're extremely adaptable to conditions, and survive wherever they are.""Microorganisms are crucial to nutrient recycling in ecosystems as they act as decomposers. As some microorganisms can fix nitrogen, they are a vital part of the nitrogen cycle, and recent studies indicate that airborne microorganisms may play a role in precipitation and weather. Microorganisms are also exploited in biotechnology, both in traditional food and beverage preparation, and in modern technologies based on genetic engineering. A small proportion of microorganisms are pathogenic and cause disease and even death in plants and animals. Microorganisms are often referred to as microbes, but this is usually used in reference to pathogens.
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